CN109233500A - Water-based acrylic resin anti-corrosive insulation coating and preparation method thereof - Google Patents
Water-based acrylic resin anti-corrosive insulation coating and preparation method thereof Download PDFInfo
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- CN109233500A CN109233500A CN201811190280.1A CN201811190280A CN109233500A CN 109233500 A CN109233500 A CN 109233500A CN 201811190280 A CN201811190280 A CN 201811190280A CN 109233500 A CN109233500 A CN 109233500A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/328—Phosphates of heavy metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention provides a kind of water-based acrylic resin anti-corrosive insulation coating and preparation method thereof, wherein, the following steps are included: 1) existing for the initiator under the conditions of, octamethylcy-clotetrasiloxane and divinyl tetramethyl disiloxane are mixed to be placed under conditions of temperature is 100-170 DEG C under nitrogen environment and reacted, pre-composition X1 is obtained；2) epoxy resin and pre-composition X1 are stirred with modified promotor in the presence of a solvent, modified epoxy X2 is made；3) it is ground after mixing water-based acrylic resin, modified epoxy X2, filler, azodiisobutyronitrile and water, water-based acrylic resin anti-corrosive insulation coating is made；Wherein, the filler includes at least calcium carbonate and trbasic zinc phosphate.Realize the performances such as good water-fast corrosion resistant.
Description
Technical field
The present invention relates to water-based acrylic resin paint fields, particularly, it is exhausted to be related to a kind of water-based acrylic resin antirust
Edge coating and preparation method thereof.
Background technique
Water-based acrylic resin coating is as a kind of water paint, for traditional solvent type coating, does not make
With a large amount of organic solvent, thus have many advantages, such as that valence is low, highly-safe, and higher for the friendliness of environment, meanwhile,
With preferable insulation performance, therefore can be widely used in multiple fields.But because its levelability is poor, make its
Blast hole is easy to appear after coating, and viscosity is difficult to be effectively controlled, to be difficult to that there is preferable adhesiveness.Meanwhile in reality
Border in use, the problems such as often blistering is easy to appear after water impregnates for a long time, is fallen off because of it, but also its rustproof property compared with
Difference.
Summary of the invention
It is an object of that present invention to provide a kind of water-based acrylic resin anti-corrosive insulation coating and preparation method thereof, to solve water
Property acrylic resin paint water resistance is poor, is easy to appear corrosion in actual use, and adhesion property is not sufficiently stable, easily
Cause the problems such as blistering after being coated on sheet surface.
To achieve the above object, the present invention provides a kind of preparation method of water-based acrylic resin anti-corrosive insulation coating,
Wherein, comprising the following steps:
1) under the conditions of existing for the initiator, by octamethylcy-clotetrasiloxane and divinyl tetramethyl disiloxane in nitrogen
Mixing is placed under conditions of temperature is 100-170 DEG C and reacts under compression ring border, obtains pre-composition X1；
2) epoxy resin and pre-composition X1 are stirred with modified promotor in the presence of a solvent, is made and changes
Property epoxy resin X2；
3) it grinds, makes after mixing water-based acrylic resin, modified epoxy X2, filler, azodiisobutyronitrile and water
Obtain water-based acrylic resin anti-corrosive insulation coating；
Wherein, the filler includes at least calcium carbonate and trbasic zinc phosphate.
Preferably, the initiator is tetramethylammonium hydroxide in step 1).
Preferably, mixed process includes: in a nitrogen environment, by octamethylcy-clotetrasiloxane and to draw in step 1)
Hair agent be placed in temperature be 50-60 DEG C under conditions of be stirred 1-2h after, be added divinyl tetramethyl disiloxane in 70-80
After being stirred 0.5-1h under conditions of DEG C, it is warming up to 100-170 DEG C and is stirred 3-5h.
Preferably, on the basis of the initiator of 1mL, the dosage of octamethylcy-clotetrasiloxane is 800- in step 1)
1100mL, the dosage of divinyl tetramethyl disiloxane are 700-1000mL.
Preferably, the solvent is cyclohexanone in step 2)；The modified promotor is positive four butyl ester of metatitanic acid.
Preferably, on the basis of the solvent of 10mL, the dosage of epoxy resin is 5-20g, pre-composition X1 in step 2)
Dosage be 3-8g, the dosage of modified promotor is 0.2-1mL.
Preferably, being stirred process in step 2) is to carry out under conditions of temperature is 150-170 DEG C.
Preferably, in step 3), on the basis of the water-based acrylic resin of 100g, the dosage of modified epoxy X2
For 30-50g, the dosage of filler is 10-20g, and the dosage of azodiisobutyronitrile is 2-5g, and the dosage of water is 30-50mL.
Preferably, filler further includes nano-titanium dioxide.
Additionally provide a kind of water-based acrylic resin anti-corrosive insulation coating, wherein the water-based acrylic resin antirust is exhausted
Edge coating is made according to preparation method described above.
The invention has the following advantages: being catalyzed four silicon oxygen of prestox ring under the conditions of the present invention is existing for the initiator
Alkane forms active centre by initiator, and catalysis octamethylcy-clotetrasiloxane loop chain first disconnects and polymerize, so that chain growth shape
At the organosiloxane oligomers of linear structure, meanwhile, after being catalyzed octamethylcy-clotetrasiloxane, activated centre is shifted,
It is further catalyzed divinyl tetramethyl disiloxane, so that divinyl tetramethyl disiloxane is to organosiloxane oligomers
End introduce reactive group vinyl, be formed as the reactive silicone oligomer containing vinyl, enhance its activity,
It is further that it is mixed and modified under certain condition with epoxy resin, because it is with high activity, and through octamethylcy-clotetrasiloxane
The oligomer structure formed with divinyl tetramethyl disiloxane is regular, considerably increases its crosslinking reacted with epoxy resin
Point enables silicone oligomer to be preferably scattered in epoxy resin in the form of particle, effectively improves modified ring
The performances such as water-fast and corrosion-resistant of oxygen resin.Further by water-based acrylic resin, above-mentioned modified epoxy resin and filler
It is mixed under certain condition, by will be grafted on water-based acrylic resin after the ehter bond open loop on epoxy resin, herein
In the process, the epoxy group in the carboxyl and epoxy resin on water-based acrylic resin reacts, and forms cross-bond, while epoxy
Former epoxy group in resin chain reacts to be formed on the macromolecular chain that hydroxyl connection is formed after cross-linking, so that aqueous acrylamide
Acid resin and epoxy resin form cross-linked structure, because whole process is generated without small-molecule substance, thus asphalt mixtures modified by epoxy resin in the process
The shrinking percentage of rouge is low, and hydroxyl generated etc. is polar functional group, can produce this strong intermolecular force of hydrogen bond, to have
The problems such as imitating the inertial forces improved in entire cross-linking system, and then being effectively improved water-based acrylic resin hot sticky cold crisp, mentions
Its high performance such as water-fast and corrosion-resistant, greatly increase the performances such as its anti-corrosion and high rigidity and high intensity.With calcium carbonate and phosphoric acid
For zinc as filler, calcium carbonate can hydrolyze under this aqueous environments of water-based acrylic resin generates calcium hydroxide, effectively improves
Adhesive force, and acid medium can be further absorbed, improve rustless property；And trbasic zinc phosphate can also further hydrolyze to form zinc hydroxide
And phosphate anion, facilitate it and form complex compound, is effectively formed protective layer, improves its corrosion resisting property.And water soluble acrylic acid tree
Rouge and above-mentioned material all have good insulation performance, can effectively realize insulating properties after above-mentioned substance mixing, greatly improve it
Use scope.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
The present invention is further detailed explanation below.
Specific embodiment
The embodiment of the present invention is described in detail below, but the present invention can be limited and be covered according to claim
Multitude of different ways implement.
The present invention provides a kind of preparation methods of water-based acrylic resin anti-corrosive insulation coating, wherein including following step
It is rapid:
1) under the conditions of existing for the initiator, by octamethylcy-clotetrasiloxane and divinyl tetramethyl disiloxane in nitrogen
Mixing is placed under conditions of temperature is 100-170 DEG C and reacts under compression ring border, obtains pre-composition X1；
2) epoxy resin and pre-composition X1 are stirred with modified promotor in the presence of a solvent, is made and changes
Property epoxy resin X2；
3) it grinds, makes after mixing water-based acrylic resin, modified epoxy X2, filler, azodiisobutyronitrile and water
Obtain water-based acrylic resin anti-corrosive insulation coating；
Wherein, the filler includes at least calcium carbonate and trbasic zinc phosphate.
The invention has the following advantages: being catalyzed four silicon oxygen of prestox ring under the conditions of the present invention is existing for the initiator
Alkane forms active centre by initiator, and catalysis octamethylcy-clotetrasiloxane loop chain first disconnects and polymerize, so that chain growth shape
At the organosiloxane oligomers of linear structure, meanwhile, after being catalyzed octamethylcy-clotetrasiloxane, activated centre is shifted,
It is further catalyzed divinyl tetramethyl disiloxane, so that divinyl tetramethyl disiloxane is to organosiloxane oligomers
End introduce reactive group vinyl, be formed as the reactive silicone oligomer containing vinyl, enhance its activity,
It is further that it is mixed and modified under certain condition with epoxy resin, because it is with high activity, and through octamethylcy-clotetrasiloxane
The oligomer structure formed with divinyl tetramethyl disiloxane is regular, considerably increases its crosslinking reacted with epoxy resin
Point enables silicone oligomer to be preferably scattered in epoxy resin in the form of particle, effectively improves modified ring
The performances such as water-fast and corrosion-resistant of oxygen resin.Further by water-based acrylic resin, above-mentioned modified epoxy resin and filler
It is mixed under certain condition, by will be grafted on water-based acrylic resin after the ehter bond open loop on epoxy resin, herein
In the process, the epoxy group in the carboxyl and epoxy resin on water-based acrylic resin reacts, and forms cross-bond, while epoxy
Former epoxy group in resin chain reacts to be formed on the macromolecular chain that hydroxyl connection is formed after cross-linking, so that aqueous acrylamide
Acid resin and epoxy resin form cross-linked structure, because whole process is generated without small-molecule substance, thus asphalt mixtures modified by epoxy resin in the process
The shrinking percentage of rouge is low, and hydroxyl generated etc. is polar functional group, can produce this strong intermolecular force of hydrogen bond, to have
The problems such as imitating the inertial forces improved in entire cross-linking system, and then being effectively improved water-based acrylic resin hot sticky cold crisp, mentions
Its high performance such as water-fast and corrosion-resistant, greatly increase the performances such as its anti-corrosion and high rigidity and high intensity.With calcium carbonate and phosphoric acid
For zinc as filler, calcium carbonate can hydrolyze under this aqueous environments of water-based acrylic resin generates calcium hydroxide, effectively improves
Adhesive force, and acid medium can be further absorbed, improve rustless property；And trbasic zinc phosphate can also further hydrolyze to form zinc hydroxide
And phosphate anion, facilitate it and form complex compound, is effectively formed protective layer, improves its corrosion resisting property.And water soluble acrylic acid tree
Rouge and above-mentioned material all have good insulation performance, can effectively realize insulating properties after above-mentioned substance mixing, greatly improve it
Use scope.
Initiator type can be made appropriate choice by those skilled in the art in step 1), for example, a kind of preferred
In embodiment, in step 1), the initiator is further selected as tetramethylammonium hydroxide.
Further, in step 1) in order to enable the introducing of vinyl groups can be effectively improved after mixing, further increase
The activity of strong obtained silicone oligomer, in further preferred embodiment, in step 1), mixed process can be limited specifically
Be set to includes: in a nitrogen environment, octamethylcy-clotetrasiloxane and initiator to be placed under conditions of temperature is 50-60 DEG C and stirred
After mixing 1-2h, after addition divinyl tetramethyl disiloxane is stirred 0.5-1h under conditions of 70-80 DEG C, it is warming up to
100-170 DEG C is stirred 3-5h.
The dosage of above-mentioned raw materials can select in a wide range, for example, in a kind of preferred embodiment, step 1)
In, on the basis of the initiator of 1mL, the dosage of octamethylcy-clotetrasiloxane is 800-1100mL, two silicon of divinyl tetramethyl
The dosage of oxygen alkane is 700-1000mL.
In further preferred embodiment, in step 2), the solvent is cyclohexanone；The modified promotor is metatitanic acid
Positive four butyl ester.
Similarly, in a kind of preferred embodiment, in step 2), on the basis of the solvent of 10mL, the use of epoxy resin
Amount is 5-20g, and the dosage of pre-composition X1 is 3-8g, and the dosage of modified promotor is 0.2-1mL.
In order to further increase the water-fast and corrosion resistance of modified epoxy resin, a kind of preferred embodiment
In, the process that is stirred in step 2) is to carry out under conditions of temperature is 150-170 DEG C.
Similarly, in a kind of preferred embodiment, in step 3), on the basis of the water-based acrylic resin of 100g, change
Property epoxy resin X2 dosage be 30-50g, the dosage of filler is 10-20g, and the dosage of azodiisobutyronitrile is 2-5g, the use of water
Amount is 30-50mL.Further, the amount ratio of calcium carbonate and trbasic zinc phosphate can select in a wide range in filler here,
Certainly, in order to be better achieved antirust and corrosion resisting property, the amount ratio of calcium carbonate and trbasic zinc phosphate is 1:0.3-0.6.
In further preferred embodiment, in order to preferably improve the performances such as ageing-resistant of coating obtained, filler is also
Including nano-titanium dioxide.
Additionally provide a kind of water-based acrylic resin anti-corrosive insulation coating, wherein the water-based acrylic resin antirust is exhausted
Edge coating is made according to preparation method described above.
The following are specific embodiments.
Embodiment 1
1) it is 50 that 800mL octamethylcy-clotetrasiloxane and 1mL tetramethylammonium hydroxide, which in a nitrogen environment, are placed in temperature,
After being stirred 1h under conditions of DEG C, 700mL divinyl tetramethyl disiloxane is added and is stirred under conditions of 70 DEG C
After 0.5h, be warming up to 150 DEG C be stirred 3h after be evaporated under reduced pressure, obtain pre-composition X1；
2) by 10mL cyclohexanone, 5g epoxy resin and 3g pre-composition X1 and positive four butyl ester of 0.2mL metatitanic acid in 150 DEG C of condition
Under be stirred, be made modified epoxy X2；
3) by 100g water-based acrylic resin, 30g modified epoxy X2,10g filler (calcium carbonate: trbasic zinc phosphate: nanometer two
The weight ratio of titanium oxide is ground after mixing for 1:0.3:0.05), 2g azodiisobutyronitrile and 30mL water, and water soluble acrylic acid tree is made
Rouge anti-corrosive insulation coating A1.
Embodiment 2
1) 1100mL octamethylcy-clotetrasiloxane and 1mL tetramethylammonium hydroxide, which in a nitrogen environment, are placed in temperature, is
After being stirred 2h under conditions of 60 DEG C, addition 800mL divinyl tetramethyl disiloxane stirs mixed under conditions of 80 DEG C
Close 1h after, be warming up to 170 DEG C be stirred 5h after be evaporated under reduced pressure, obtain pre-composition X1；
2) by 10mL cyclohexanone, 20g epoxy resin and 8g pre-composition X1 and positive four butyl ester of 1mL metatitanic acid in 170 DEG C of condition
Under be stirred, be made modified epoxy X2；
3) by 100g water-based acrylic resin, 50g modified epoxy X2,20g filler (calcium carbonate: trbasic zinc phosphate: nanometer two
The weight ratio of titanium oxide is ground after mixing for 1:0.6:0.08), 5g azodiisobutyronitrile and 50mL water, and water soluble acrylic acid tree is made
Rouge anti-corrosive insulation coating A2.
Embodiment 3
1) 1000mL octamethylcy-clotetrasiloxane and 1mL tetramethylammonium hydroxide, which in a nitrogen environment, are placed in temperature, is
After being stirred 2h under conditions of 60 DEG C, addition 800mL divinyl tetramethyl disiloxane stirs mixed under conditions of 80 DEG C
Close 1h after, be warming up to 170 DEG C be stirred 5h after be evaporated under reduced pressure, obtain pre-composition X1；
2) by 10mL cyclohexanone, 10g epoxy resin and 5g pre-composition X1 and positive four butyl ester of 0.5mL metatitanic acid in 170 DEG C of item
It is stirred under part, modified epoxy X2 is made；
3) by 100g water-based acrylic resin, 40g modified epoxy X2,15g filler (calcium carbonate: trbasic zinc phosphate: nanometer two
The weight ratio of titanium oxide is ground after mixing for 1:0.5:0.06), 3g azodiisobutyronitrile and 40mL water, and water soluble acrylic acid tree is made
Rouge anti-corrosive insulation coating A3.
Embodiment 4
Preparation as described in Example 1, unlike, it is by octamethylcy-clotetrasiloxane, tetramethyl hydroxide in step 1)
Ammonium and divinyl tetramethyl disiloxane are evaporated under reduced pressure after being directly stirred 3h under conditions of 100 DEG C, are made aqueous third
Olefin(e) acid resin anti-corrosive insulation coating A4.
Embodiment 5
Preparation as described in Example 1, unlike, in step 2), cyclohexanone is replaced using acetone, using methacrylic acid
Methyl esters replaces positive four butyl ester of metatitanic acid, and water-based acrylic resin anti-corrosive insulation coating A5 is made.
Embodiment 6
Preparation as described in Example 2, unlike, in step 2), the dosage of pre-composition X1 is 2g, positive four butyl ester of metatitanic acid
Dosage is 0.1mL, and water-based acrylic resin anti-corrosive insulation coating A6 is made.
Embodiment 7
Preparation as described in Example 2, unlike, the dosage of modified epoxy X2 is 10g, and the dosage of filler is 5g,
The dosage of azodiisobutyronitrile is 1g, and water-based acrylic resin anti-corrosive insulation coating A7 is made.
Comparative example 1
Preparation as described in Example 3, unlike, calcium carbonate is substituted using magnesium carbonate in filler, and trbasic zinc phosphate uses phosphoric acid
Magnesium substitution, is made water-based acrylic resin anti-corrosive insulation coating B1.
Comparative example 2
Preparation as described in Example 3, unlike, it is placed directly within after mixing in step 1) and is reacted under room temperature,
Water-based acrylic resin anti-corrosive insulation coating B2 is made.
Comparative example 3
Preparation as described in Example 1, unlike, epoxy resin is replaced with into polyamide in step 2), water is made
Property acrylic resin anti-corrosive insulation coating B3.
Comparative example 4
Preparation as described in Example 2, unlike, azodiisobutyronitrile is not added in step 3), and water soluble acrylic acid is made
Resin anti-corrosive insulation coating B4.
Test data
Pencil by coating A1-A7 and B1-B4 obtained above respectively according to HG/T4758-2014 detection coating is hard
Degree, water resistance, resistance to salt water and salt fog resistance, the results are shown in Table 1.Wherein, the standard value in HG/T4758 is according to II type
Normal temperature self-drying type coating is defined, and water resistance and resistance to salt water (3% sodium chloride solution) are to rise inside the time of restriction
It steeps, fall off, not feeling like jelly, is not tacky etc., salt fog resistance is defined because II type coating is without clearly limiting according to I type.This
Water resistance, resistance to salt water and salt fog resistance highest accomplish 7 days time in application, are recorded as 168h if unchanged after 7 days.
Above-mentioned coating is detected into viscosity of the coating according to GB/T1723 again, while being sprayed according to the method in GB/T1727
It is 50 ± 5 μm to coating thickness, its adhesion strength and curing time is detected according to GB1720, obtain that the results are shown in Table 1.
Table 1
Table 2
| Number | Viscosity of the coating (s) | Adhesion strength | Curing time (s) |
| Embodiment 1 | 50 | Level-one | 80 |
| Embodiment 2 | 50 | Level-one | 85 |
| Embodiment 3 | 45 | Level-one | 80 |
| Embodiment 4 | 40 | Level-one | 100 |
| Embodiment 5 | 45 | Level-one | 90 |
| Embodiment 6 | 50 | Level-one | 85 |
| Embodiment 7 | 45 | Level-one | 85 |
| Comparative example 1 | 40 | Second level | 100 |
| Comparative example 2 | 35 | Level-one | 95 |
| Comparative example 3 | 20 | Three-level | 150 |
| Comparative example 4 | 25 | Three-level | 120 |
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of preparation method of water-based acrylic resin anti-corrosive insulation coating, which comprises the following steps:
1) under the conditions of existing for the initiator, by octamethylcy-clotetrasiloxane and divinyl tetramethyl disiloxane in nitrogen ring
Mixing is placed under conditions of temperature is 100-170 DEG C and reacts under border, obtains pre-composition X1；
2) epoxy resin and pre-composition X1 are stirred with modified promotor in the presence of a solvent, modified ring is made
Oxygen resin X2；
3) it is ground after mixing water-based acrylic resin, modified epoxy X2, filler, azodiisobutyronitrile and water, water is made
Property acrylic resin anti-corrosive insulation coating；
Wherein, the filler includes at least calcium carbonate and trbasic zinc phosphate.
2. the preparation method of water-based acrylic resin anti-corrosive insulation coating according to claim 1, which is characterized in that step
1) in, the initiator is tetramethylammonium hydroxide.
3. the preparation method of water-based acrylic resin anti-corrosive insulation coating according to claim 2, which is characterized in that step
1) in, mixed process includes: that in a nitrogen environment, it is 50-60 DEG C that octamethylcy-clotetrasiloxane and initiator, which are placed in temperature,
Under the conditions of be stirred 1-2h after, be added divinyl tetramethyl disiloxane 0.5- is stirred under conditions of 70-80 DEG C
After 1h, it is warming up to 100-170 DEG C and is stirred 3-5h.
4. the preparation method of water-based acrylic resin anti-corrosive insulation coating according to claim 1 or 2, which is characterized in that
In step 1), on the basis of the initiator of 1mL, the dosage of octamethylcy-clotetrasiloxane is 800-1100mL, divinyl tetramethyl
The dosage of base disiloxane is 700-1000mL.
5. the preparation method of water-based acrylic resin anti-corrosive insulation coating according to claim 1, which is characterized in that step
2) in, the solvent is cyclohexanone；
The modified promotor is positive four butyl ester of metatitanic acid.
6. the preparation method of water-based acrylic resin anti-corrosive insulation coating according to claim 5, which is characterized in that step
2) in, on the basis of the solvent of 10mL, the dosage of epoxy resin is 5-20g, and the dosage of pre-composition X1 is 3-8g, modified promotor
Dosage be 0.2-1mL.
7. the preparation method of water-based acrylic resin anti-corrosive insulation coating according to claim 5 or 6, which is characterized in that
It is to carry out under conditions of temperature is 150-170 DEG C that process is stirred in step 2).
8. the preparation method of water-based acrylic resin anti-corrosive insulation coating according to claim 1, which is characterized in that step
3) in, on the basis of the water-based acrylic resin of 100g, the dosage of modified epoxy X2 is 30-50g, and the dosage of filler is
10-20g, the dosage of azodiisobutyronitrile are 2-5g, and the dosage of water is 30-50mL.
9. the preparation method of water-based acrylic resin anti-corrosive insulation coating according to claim 1, which is characterized in that filler
It further include nano-titanium dioxide.
10. a kind of water-based acrylic resin anti-corrosive insulation coating, which is characterized in that the water-based acrylic resin anti-corrosive insulation applies
According to claim 1, preparation method described in any one of -9 is made material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811190280.1A CN109233500A (en) | 2018-10-12 | 2018-10-12 | Water-based acrylic resin anti-corrosive insulation coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811190280.1A CN109233500A (en) | 2018-10-12 | 2018-10-12 | Water-based acrylic resin anti-corrosive insulation coating and preparation method thereof |
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| CN109233500A true CN109233500A (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811190280.1A Withdrawn CN109233500A (en) | 2018-10-12 | 2018-10-12 | Water-based acrylic resin anti-corrosive insulation coating and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112029381A (en) * | 2020-09-09 | 2020-12-04 | 溧阳市永新绝缘粉末有限公司 | Insulating powder with good flexibility and mechanical impact resistance, preparation method and application method |
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| CN112029381A (en) * | 2020-09-09 | 2020-12-04 | 溧阳市永新绝缘粉末有限公司 | Insulating powder with good flexibility and mechanical impact resistance, preparation method and application method |
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Application publication date: 20190118 |